J. D. Cobb, “Controllability, observability and duality in singular systems,” IEEE Trans. Autom. Control, vol. 12, pp. 1076–1082, 1984.
L. Dai, “Singular Control Systems”, Berlin, Springer, 1989.
M. Alma, M. Darouach, “Adaptive observers design for a class of linear descriptor systems,” Automatica, vol.50, pp. 578-583, 2014.
Z. Razavinasab, M. Samavat, M. A. Vali, “Analysis of singular transistor circuits using the orthogonal functions”, Far East J. of Applied Mathematics, 61, pp. 117-135, 2012.
M. Hou, P.C. Muller, “Design of a class of Luenberger observers for descriptor systems”, IEEE Trans. Autom. Control, vol. 40, pp. 133–136, 1995.
M. Darouac, M. Boutayeb, “Design of observers for descriptor systems”, IEEE Trans. Autom. Control, vol. 40, pp. 1323–1327, 1995.
A. G. Wu, G. R. Duan, “IP observer design for descriptor linear systems”, IEEE Trans. Circuits Syst. II, vol. 36, pp. 1423–1431, 2006.
M. Darouach, “Functional observers for linear descriptor systems”, 17th Mediterranean Conf. Control & Automation, Greece, Makedonia Palace, Thessaloniki, June 24-26, pp. 1535-1539, 2009.
B. M. Mohan, S. K. Kar, “State estimation using Block-Pulse functions”, India Conf., Annual IEEE., India, Kanpur, 27 January, pp. 280-285, 2009.
J. H. Chou, I. R. Horng, “State estimation using continuous orthogonal functions”, Int. J. Systems Sci., vol. 17, pp. 1261-1267, 1986.
B. M. Mohan, S. K. Kar, “State Estimation using Shifted Legendre Polynomials”, the Third int. Conf. Industrial and Information Systems, IEEE Region 10, India, Kharagpur, December 8-10, pp. 1-6, 2008.
Z. Razavinasab, M. A. Vali, M., Samavat, “Wavelet analysis of linear optimal control systems incorporating observers”, Int. J. Innovative Computing, Information and Control, vol. 8, pp. 3215-3222, 2012.
K. B. Datta, B. M. Mohan, “Orthogonal Functions in Systems and Control”, World Scientific, 1995.
M. Zasadzinski, M. Darouach, “State estimation for a class of singular systems”, Int. J. Systems Sci., vol. 23, pp. 517-530, 1992.
M. Darouach, M. Zasadzinski, D. Mehdi, “State estimation of stochastic singular linear systems”, Int. J. Systems Sci., vol. 24, pp. 345-354, 1993.
Z. Gao, D., Ho, “State/Noise Estimator for Descriptor Systems With Application to Sensor Fault Diagnosis”, IEEE Trans. On Signal Proc., vol. 54, pp. 1316-1326, 2006.
L. Elizabeth, L. Yip, R. F., Sincovec, “Solvability, controllability, and observability of continuous descriptor systems”, IEEE Trans. Autom. Control, vol. 26s, pp.702-706, 1981.
J. W. Brewer,. “Kronecker products and matrix calculus in system theory”, IEEE Trans. on Circuits and Systems, cas-25, (9), pp. 772-781, 1978.